24D Page 124
(e) E 2. (R2 p 82, R3 p 74, R4 pp 4, 20.)
Select the five best rows, as for 9 x 5 flag: A, B, C, D, E.
In A take all scores above the standard (see below) to from a rudimentary ΔΧ1 wheel.
Take this through the rectangle, getting ΔΧ2A, similarly ΔΧ2B, ΔΧ2C, Χ2D, ΔΧ2E, each a column of scores, not merely dots and crosses.
Make a flag of these five ΔΧ2's by Jacob's method.
Choose 2, 3, 4 or 5 of these, and, with the appropriate ± signs add them. The high scoring characters can be used as a start.
Depth | 4-6 | 6-8 | 8-10 | 10-12 | 12-14 | 14-16 | ||
Standard | 4 | 5 | 6 | 7 | 8 | 9 |
(f) Restarts.
At the end of a convergence the characters used in the start are liable to score unduly well; but even if the start is a poor one, some of the characters for which the rectangle really does provide strong evidence should also score well (R3 p 16). If high scoring characters which appeared late in the convergence are taken as a new start, a better convergence may be obtained. (R2 p 101, R3 p 98.)
.(g) E 1.
An elaborate variation on restarts is E 1 for which the instructions are:-
Make a start by eye
Purge
Take 5 characters as a new start
Purge again
Each purge involves the following:-
Suppose the eye-start is ΔΧ2α of 3 to 5 characters. Take ΔΧ2α through the rectangle getting ΔΧ1α of 6-10 characters. Take ΔΧ1α through the rectangle getting ΔΧ2β of 8-12 characters, in choosing which, reduce the score of any character which was in ΔΧ2α by one-third. Take ΔΧ2β through the rectangle getting ΔΧ1α of 5-10 characters, excluding all characters which were in ΔΧ1β. (R4 p 3; for random starts R1 p 93.)
Back to General Report on Tunny. Contents.